: : If you have any opinion about time trave, I encourage : : you to tell me about them. : Time travel is impossible.

Impossible is a very final word. Many things in the past were believed to be impossible, but are now commonplace. I don't know if time trravel is possible, but I tend to be sceptical that anything is truly "impossible".I do now that it is impossible with current human technology, and may always be so, but just because something is never achieved, does not make it impossible.